Connor Wood
72 lines
1.9 KiB
Rust
72 lines
1.9 KiB
Rust
//! # AML
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//! Code to parse and execute AML tables
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use alloc::boxed::Box;
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use collections::string::String;
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use collections::vec::Vec;
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use collections::btree_map::BTreeMap;
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use core::fmt::Debug;
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use core::str::FromStr;
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use super::sdt::Sdt;
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#[macro_use]
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mod parsermacros;
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mod namespace;
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mod termlist;
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mod namespacemodifier;
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mod pkglength;
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mod namestring;
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mod namedobj;
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mod dataobj;
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mod type1opcode;
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mod type2opcode;
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use self::termlist::{parse_term_list, TermObj};
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pub use self::namespace::{get_namespace_string, AmlValue};
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// TODO: This should be able to take parameters, and may also return multiple values
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pub trait AmlExecutable {
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fn execute(&self, namespace: &mut BTreeMap<String, AmlValue>, scope: String) -> Option<AmlValue>;
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}
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// TODO: make private
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pub enum AmlInternalError {
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AmlParseError(&'static str),
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AmlInvalidOpCode,
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AmlDeferredLoad
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}
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pub enum AmlError {
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AmlParseError(&'static str)
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}
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pub fn parse_aml_table(sdt: &'static Sdt) -> Result<BTreeMap<String, AmlValue>, AmlError> {
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let data = sdt.data();
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let term_list = match parse_term_list(data) {
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Ok(res) => res,
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Err(AmlInternalError::AmlParseError(s)) => return Err(AmlError::AmlParseError(s)),
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Err(AmlInternalError::AmlInvalidOpCode) => return Err(AmlError::AmlParseError("Unable to match opcode")),
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Err(AmlInternalError::AmlDeferredLoad) => return Err(AmlError::AmlParseError("Deferred load reached top level"))
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};
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let global_namespace_specifier = String::from_str("\\").unwrap();
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// Unwrap is fine here. I mean come on, if this goes wrong you've got bigger problems than AML
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// not loading...
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let mut global_namespace = BTreeMap::new();
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term_list.execute(&mut global_namespace, global_namespace_specifier.clone());
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Ok(global_namespace)
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}
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pub fn is_aml_table(sdt: &'static Sdt) -> bool {
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if &sdt.signature == b"DSDT" || &sdt.signature == b"SSDT" {
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true
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} else {
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false
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}
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}
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